feat: Accept only new format for BR codes

[sineed]

https://en.wikipedia.org/wiki/C%C3%B3digo_de_Endere%C3%A7amento_Postal

Introduced in 1972 as a sequence of five digits, it was expanded to eight digits in 1992 to allow for more precise localization. The standard format is "nnnnn-nnn" (the original five digits, a hyphen, and the new three digits).

Most cities with population around 100,000 and above have a CEP assigned to every public place and to some high-occupancy private spaces, like major commercial buildings and large residential condos. Small towns are assigned a general 5-digit code followed by the suffix -000.

There is also a fix of the Cambodian tests